???8??27?????????480*20??201????????????????????
?????????????<br><br>???????????????6??1800??8000 80??<BR>10??1800??8000 76??<BR>8??1800??8000 90??<BR>10??2000??8000 35??<BR>12??2000??8000 42??<BR>14??2000??8000 21??<br><br>??????????????????????????????????????????壬????????????????????????????????????β????q????????????????????????????í??????????A3q???
?????????????
???????????????
6??1800??8000 80??
10??1800??8000 76??
8??1800??8000 90??
10??2000??8000 35??
12??2000??8000 42??
14??2000??8000 21??
???????????????
???????????????????????????壬????????????????????????????????????β????q????????????????????????????í??????????A3q?????????????????16q????????????????12Mnq??12MnVq??15MnVNq??16Mnq??????????????4.5~50?????
???8??27?????????480*20??q345qc????????????????????
